Upgrade File This firmware will correct the following phenomenons some units may experience.-. Intermittent Audio Drop-Out with HDMI connectionThe firmware will be updated to the following version.-. HPT4034 : 1049 or 1004-. HPT4254 : 1049 or 1004-. HPT5034 : 1049 or 1010-. HPT5054 : 1049 or 1010Please be sure to read the instruction before beginning the update process.